**5. Conclusions**

A solution to the current balancing problem in voltage fed MCSIs was proposed in this paper. Unlike previous solutions [12,14], the CBA does not require any dedicated PI controllers; and it does not impose any alteration on the PWM carrier waveforms. Moreover, the CBA can be implemented in any MCSI, regardless of the number of levels. In addition, the modified LS-SPWM implementation in MCSIs was discussed in this paper. It was shown to have lower THD and *di*/*dt* compared to the PSC-SPWM. Although it was originally proposed for multilevel VSIs [16], it was never implemented

in MCSIs. To validate the presented theoretical work, a proof-of-concept lab prototype was designed and tested. Experimental results for the five-level and seven-level cases were presented.

**Author Contributions:** Conceptualization, F.A. and M.G.S.; methodology, F.A. and M.G.S.; software, F.A.; validation, F.A.; formal analysis, F.A. and M.G.S.; investigation, F.A.; resources, F.A. and M.G.S.; data curation, F.A.; writing—original draft preparation, F.A.; writing—review and editing, F.A. and M.G.S.; visualization, F.A.; supervision, M.G.S.; project administration, M.G.S.; funding acquisition, F.A. and M.G.S. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research received no external funding.

**Conflicts of Interest:** The authors declare no conflict of interest.
